Over recent months more car manufacturers have come under scrutiny following investigation in Germany relating to car emissions. Mercedes, Opel and VW have all said they will recall vehicles that, while not illegal have used a loophole to improve the results of official emissions testing.
The German tests that kicked off the voluntary recall revealed that real-world NOx figures were all higher that official stats. Similar discrepancies have been found by the UK Government and independent real-world testing.
The number of brands tarred with the emissions scandal brush has been growing ever since Volkswagen first admitted it had installed cheat software in 11 million cars.
We give you a quick update of recent on goings:
- September 2015 – VW Group admits cheating in emissions tests. 11 million vehicles affected globally, 1.2 million in the UK.
- January 2016 – Renault were raided by French authorities investigating emissions figures.
- April 2016 – Mercedes stated to investigate its US emissions testing procedure.
- April 2016 – Mitsubishi admits cheating official Japanese fuel figure tests. 600,000 plus cars affected ( going back to 1991).
- April 2016 – Mercedes, Opel and VW Group, recalling 630,000 diesel cars in Germany to change software that made use of an emissions test loophole. While not illegal the loophole allows car makers to perform better in emissions tests than on the road.
- April 2016 – Peugeot / Citroen are raided by French authorities investigating emissions figures.
- April 2016 – Fiat had German authorities discover NOx reduction system turns off after 22 minutes; the official test is 20 minutes.
Historically, the focus for the automotive industry, driven by Governments has been to reduce CO2 emissions in order to decrease the impact of vehicles on global warming. Pressure is now growing on both manufacturers and the government to reduce NOx emissions because these have been shown to have a more immediate detrimental impact on health than other engine emissions.
We will be keeping our eyes peeled on the developments over the next few months.
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